Calvin Harris and Taylor Swift appeared to confirm their relationship in the early hours of Friday morning when they were snapped holding hands - but a sneaky picture of the pair going PDA-mad inside has got fans VERY excited about the budding romance.

And as if that wasn't enough proof, Calvin was then snapped leaving Taylor's house the next morning. Could this be the final confirmation?

Rita Ora's ex Calvin had his arms wrapped around the singer as she sat back on his knee during a Haim gig in West Hollywood hours before.

One fan caught THIS incredible moment (Image: Twitter @ShakteitTay13)

The pair looked like the perfect couple as they watched the performance together, and fans captured the moment from inside the venue - more than a bit excited by it all.

Posting the snap on Twitter, one fan wrote: "They look so good together and what's better than @taylorswift13 being all happy with @CalvinHarris only that matters."

Hours later Calvin left her home alone and headed back to his own property.

The morning after the night before (Image: X17online.com)

There's been speculation that they have been dating ever since they were seen getting close at the Brits afterparty.

And the musical duo appeared to confirm they ARE an item when they were pictured leaving The Troubador nightclub in the early hours.

The couple were surrounded by a flurry of snappers as they left the swanky nightspot, but seemed completely oblivious to anyone but each other as they made their way to their car.

Something to tell us Calvin? (Image: X17online.com)

Dressed in a black lace bodycon dress, Taylor looked like she'd made a real effort for her date night, and Calvin, who looked dapper in a matching black tee and jeans, couldn't take his eyes off her.

The Scottish DJ followed closely behind the Shake It Off hitmaker, making sure she got to their vehicle unharmed.

After holding the door open for her, Calvin slid into the car behind her, and was seen placing a protective hand on her knee as they drove away.